:root{--bg:#D7E4E6;--deep:#C4D4D6;--panel:#F3F7F7;--panel2:#E4EEEF;--ink:#1E2C2E;--text:#2A3A3C;--muted:#4A6064;--soft:#6A8084;--teal:#4A8A8C;--sand:#C4A070;--border:rgba(30,44,46,.14);--focus:rgba(74,138,140,.42);--shadow:0 12px 28px rgba(30,44,46,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}.skip-link{position:fixed;left:12px;top:-60px;z-index:200;background:var(--panel);padding:8px 12px;border:1px solid var(--teal)}.skip-link:focus{top:8px}.top-strip{position:fixed;z-index:100;top:0;left:0;right:0;height:20px;background:var(--ink);color:var(--panel);font-size:12px}.top-strip-inner,.header-inner,.footer-inner,.page-shell{max-width:980px;margin:0 auto}.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}.micro-brand{line-height:20px}.text-action{border:0;background:transparent;color:var(--panel);min-width:44px;height:20px;cursor:pointer}.site-header{position:fixed;z-index:95;top:20px;left:0;right:0;height:54px;background:var(--panel);border-bottom:1px solid var(--border)}.header-inner{height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}.brand-link{min-width:90px;min-height:44px;display:flex;align-items:center}.brand-logo-slot img,.footer-logo img,.drawer-brand img{height:24px;width:auto;max-width:180px;object-fit:contain;object-position:center;display:block}.brand-text{font-weight:750;color:var(--ink);font-size:16px}.header-actions{display:flex;gap:8px;align-items:center}.app-link,.menu-button{min-height:44px;padding:0 14px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:14px}.app-link{background:linear-gradient(135deg,#4A8A8C 0%,#1E2C2E 100%);color:var(--panel)}.menu-button{border:1px solid var(--teal);background:var(--panel);color:var(--ink);cursor:pointer}.side-nav{position:fixed;z-index:90;top:74px;left:max(16px,calc((100vw - 980px)/2));width:110px;background:rgba(243,247,247,.92);border:1px solid var(--border);border-top:0;padding:8px 0;backdrop-filter:blur(10px)}.side-nav a{display:flex;align-items:center;height:34px;padding:0 14px;border-left:3px solid transparent;color:var(--ink);font-size:13px}.side-nav a.active{border-left-color:var(--teal);font-weight:700}.page-shell{padding:110px 16px 56px;min-height:70vh}.page-shell>section,.page-shell>article{margin-left:126px}.hero-lite,.page-intro{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:28px;margin-bottom:22px;box-shadow:var(--shadow)}.eyebrow,.mini-index{font-size:13px;color:var(--teal);font-weight:700}.mini-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:18px}.mini-index a{border-bottom:1px solid var(--focus);padding:6px 0;color:var(--ink)}h1,h2,h3{color:var(--ink);margin-top:0}h1{font-size:24px;line-height:1.3;margin-bottom:12px}h2{font-size:20px;line-height:1.4;margin-bottom:12px}h3{font-size:16px;line-height:1.5;margin-bottom:8px}.lead{font-size:16px;color:var(--ink);font-weight:700}.muted{color:var(--muted)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{height:42px;padding:0 16px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;min-width:96px}.btn-primary{background:linear-gradient(135deg,#4A8A8C 0%,#1E2C2E 100%);color:var(--panel)}.btn-secondary{background:var(--panel);border:1px solid var(--teal);color:var(--ink)}.btn:hover,.app-link:hover,.menu-button:hover,.quick-search a:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible{outline:3px solid var(--sand);outline-offset:2px}.section-block{margin-bottom:22px;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:22px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.news-col{background:var(--panel2);padding:18px;border-radius:8px}.image-slot{background:var(--deep);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;margin:0 0 14px;min-height:100px}.image-slot img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;object-position:center}.slot-168{height:168px}.slot-200{height:200px}.slot-320{height:320px}.walk-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.walk-item{padding:16px;background:var(--panel2);border-top:3px solid var(--teal);border-radius:6px}.paired-cards,.rack-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.card{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:18px}.periods{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.period{background:var(--panel2);padding:16px;border-radius:8px}.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center;padding:12px 14px;background:var(--panel2);border-left:4px solid var(--teal);border-radius:6px}.status{font-weight:700;color:var(--ink)}.app-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:center}.app-icons{display:flex;gap:12px;align-items:center}.icon-48{width:48px;height:48px;object-fit:contain}.faq-mini{display:grid;gap:10px}.faq-mini details,.faq-list details{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:12px 14px}.faq-mini summary,.faq-list summary{cursor:pointer;color:var(--ink);font-weight:700}.page-intro p:last-child{margin-bottom:0}.column-lead{display:grid;grid-template-columns:160px 1fr;gap:24px}.column-lead .rail{border-right:1px solid var(--focus);padding-right:18px}.column-lead .rail a{display:block;padding:7px 0;color:var(--muted)}.article-stack{display:grid;gap:16px}.article-stack section{background:var(--panel);border:1px solid var(--border);padding:20px;border-radius:8px}.report-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.report-grid section{background:var(--panel);border:1px solid var(--border);padding:20px;border-radius:8px}.clip-pages{display:grid;grid-template-columns:1fr 1fr;gap:20px}.clip-page{background:var(--panel);border:1px solid var(--border);padding:22px;border-radius:8px}.single-note{max-width:760px}.memo-list{counter-reset:memo;display:grid;gap:12px}.memo-list article{counter-increment:memo;background:var(--panel);padding:18px 18px 18px 58px;border:1px solid var(--border);border-radius:8px;position:relative}.memo-list article:before{content:counter(memo,decimal-leading-zero);position:absolute;left:18px;top:17px;color:var(--teal);font-weight:800}.method-sections{display:grid;gap:14px}.method-sections section{border-left:5px solid var(--teal);background:var(--panel);padding:18px 20px;border-radius:6px}.topic-list{display:grid;gap:12px}.topic-list article{display:grid;grid-template-columns:160px 1fr;background:var(--panel);border:1px solid var(--border);border-radius:8px;overflow:hidden}.topic-list strong{background:var(--panel2);padding:18px;color:var(--ink)}.topic-list div{padding:18px}.center-cards{max-width:760px;margin-left:auto!important;margin-right:auto!important;display:grid;gap:14px}.center-card{text-align:center;background:var(--panel);border:1px solid var(--border);padding:24px;border-radius:8px}.terms{display:grid;gap:14px}.terms section{background:var(--panel);border:1px solid var(--border);padding:20px;border-radius:8px}.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.about-banner{height:200px;background:var(--deep);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}.about-banner img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}.site-footer{background:#162022;color:#D7E4E6;border-top:1px solid var(--teal);padding:34px 0 calc(34px + env(safe-area-inset-bottom))}.footer-inner{padding:0 16px}.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:20px}.footer-logo strong{color:#F3F7F7}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.footer-grid h2{font-size:14px;color:#F3F7F7;margin-bottom:8px}.footer-grid a{display:block;color:#D7E4E6;font-size:13px;padding:3px 0}.footer-note,.copyright{font-size:13px;color:#D7E4E6}.footer-note{margin-top:22px;border-top:1px solid rgba(215,228,230,.18);padding-top:18px}.overlay{position:fixed;inset:0;z-index:120;background:rgba(22,32,34,.48);opacity:0;pointer-events:none;transition:.18s}.overlay.show{opacity:1;pointer-events:auto}.drawer{position:fixed;z-index:130;left:18px;bottom:18px;width:360px;max-height:480px;background:var(--panel);border:1px solid var(--border);border-radius:12px;box-shadow:0 20px 55px rgba(30,44,46,.2);transform:translateY(120%);visibility:hidden;pointer-events:none;transition:.2s;overflow:auto}.drawer.open{transform:translateY(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--panel);display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-head button,.search-head button{min-width:60px;min-height:40px;border:1px solid var(--teal);border-radius:8px;background:var(--panel);cursor:pointer}.drawer-groups{padding:10px 16px 18px}.drawer-groups section{padding:8px 0}.drawer-groups h2{font-size:14px;margin-bottom:5px}.drawer-groups a{display:grid;grid-template-columns:88px 1fr;gap:8px;padding:7px 0;border-bottom:1px solid var(--border)}.drawer-groups span{font-size:12px;color:var(--muted)}.search-panel{position:fixed;z-index:132;left:50%;top:84px;transform:translate(-50%,-20px);width:min(620px,calc(100% - 32px));background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:18px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.search-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}.search-head{display:flex;justify-content:space-between;align-items:center}.quick-search{display:flex;flex-wrap:wrap;gap:8px}.quick-search a{min-height:40px;padding:8px 13px;border:1px solid var(--teal);border-radius:8px;background:var(--panel2)}.mobile-bottom{display:none}@media(max-width:760px){.side-nav{display:none}.page-shell{padding-top:94px;padding-bottom:86px}.page-shell>section,.page-shell>article{margin-left:0}.mini-index{grid-template-columns:repeat(2,minmax(0,1fr))}.two-col,.report-grid,.clip-pages,.paired-cards,.rack-cards,.app-layout,.contact-grid,.footer-grid,.column-lead{grid-template-columns:1fr}.walk-strip,.periods{grid-template-columns:1fr}.topic-list article{grid-template-columns:1fr}.column-lead .rail{border-right:0;border-bottom:1px solid var(--focus);padding-right:0;padding-bottom:10px}.status-row{grid-template-columns:90px 1fr}.drawer{width:88%;left:6%;bottom:62px;max-height:70vh}.mobile-bottom{position:fixed;z-index:110;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--panel);border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-bottom a.active{background:var(--teal);color:var(--panel)}.search-panel{inset:0;transform:none;width:100%;height:100%;border:0;border-radius:0;background:var(--ink);color:var(--panel);padding:30px 20px;top:0;left:0}.search-panel.open{transform:none}.search-head strong{color:var(--panel)}.search-head button{background:transparent;color:var(--panel);border-color:var(--panel)}.quick-search a{background:transparent;color:var(--panel);border-color:rgba(243,247,247,.35)}.site-footer{padding-bottom:calc(82px + env(safe-area-inset-bottom))}}@media(max-width:420px){.header-actions{gap:4px}.app-link,.menu-button{padding:0 10px}.hero-lite,.page-intro,.section-block{padding:18px}.drawer-groups a{grid-template-columns:76px 1fr}}